Software and books (documentation) for Nash JC and Walker-Smith M,"Nonlinear Parameter Estimation: An Integrated System in BASIC" originally published by Dekker, NY, 1987. Rights now held by authors. Topics: Nonlinear parameter estimation, optimization
Summary: A summary and aide memoire of Bash parameter expansion methodsSeries: Bash ScriptingSource: http://hackerpublicradio.org/eps.php?id=1648Bash parameter manipulation I'm a great fan of using the Linux command line and enjoy writing shell scripts using the Bash shell. BASH (or more usually Bash or bash) is the name of a Unix shell. The name stands for Bourne Again SHell, which is a play on words. Bash is an extension of the shell originally written by Stephen Bourne in 1978, usually... Topics: Bash, script, parameter, variable
Steam turbine blades are the most important component of the thermal power plant. Most of the research work on creep estimation is done on the high pressure or intermediate pressure turbines blades. The main aim of this study is to estimate the creep life of 210 MW low pressure steam turbine blade. In first stage the three dimensional model of the blade was prepared in the PRO-E then this model is imported in ANSYS-14.5 for finite element analysis. Maximum stress and maximum deformation can be... Topics: Creep, Larson Miller Parameter, Stress Analysis, Turbines.
Children can link facts and events into integrated beliefs. This ability of the mind to combine facts to form higher-order Gestalts is central to many cognitive activities, including problem solving, analogical reasoning, and creative thought. In fact, it is central to the abduction of meaning: the creation of a self-sustaining pattern of ordered facts that are combined in the larger Gestalt. Abduction has mostly escaped experimental investigation, possibly because it often emerges instantly... Topics: Abduction, Reasoning, Nonlinear Dynamics, Constraints, Parameter Dynamics
The issues regarding the functioning and growth of an ideal economic society is the subject of investigation here. One basic guideline for such a society is that it must have total control over its economics and that money cannot drive such a society from pillar to post. The equal right of every individual over the basic amenities to live and grow and equal right of every individual over the resources, ensuring no misuse of the society's resources may be taken care of by controlling the market... Topics: ideal economy, chaos analysis, control parameter
Detection of breast cancer in its early stage is very important in the field of medicine. Optimal Contrast Enhancement is essential for the detection of mass and micro calcification in mammogram images. The standard histogram equalization is effective and simple method for contrast enhancement but for medical images most of the time it produces excessive contrast enhancement due to lack of control for the level of enhancement. In this paper image enhancement is considered as an... Topics: Optimization, Enhancement parameter, Parameter Tuning, Histogram Equalization, Local Contrast...
byARBIND PD PANDIT 1, VISHNU S. SINHA 2 and NANDJEE KUMAR
The Area under study, Chaibasa is situated in the West Singhbhum of Jharkhand State. The present study deals with physico-chemical parameter of ground water with special reference to Nitrate of five different areas of Chaibasa town and its adjoing area i.e. Khaparsai (S 1), Meritola (S 2), Kumhartoli (S 3), Supalsai (S 4) and Madhutalab (S 5). The groundwater parameters such as temperature, pH, turbidity, electrical conductivity, alkalinity, dissolved oxygen, biochemical oxygen demand, total... Topics: Groundwater, Physico-chemical parameter, Water quality, Dissolved oxygen.
Partitioning of two amino acids ( DL-alanine and hexaglycine) were measured in dextran + poly( ethylene glycol)+ water two- phase system. The coefficient for partition of DL-alanine and hexaglycine were correlated by using the osmotic viral equation. The phase interaction or partitioning coefficientin the equation can be calculated by hydrophilic group’s parameters which gives in fairly good agreement with the experimental data on change in concentration at 293.15Kat room pressure. Topics: Partition coefficient, Hydrophilic parameter, Osmotic Viral equation, Dextran.
This paper focus on sensor nodes failure detectionmonitoring and control process via GSM and ZIGBEEwireless module. The virtual instrumentation process doesmeasure the sensor node characteristics value and control theenvironment by wireless network. The industrial need doesuses four types of sensor gas, radiation, temperature, andsmoke sensors. The error occurrence does it’s to be detectedand it will be control by the ARM controller. The performancesmeasures does it can be monitor and also be... Topics: wireless sensor network, sensor parameter instrumentation, proteus view.
Shell structures constituted a major component of today’s aerospace, submarine, automotive and other machine or structural elements. They were used in aircraft, spacecraft, rockets, cars, computers, submarines, boats, storage tanks and the roofs of buildings. With the progress of composite materials, shallow shells constructed by composite laminas were extensively used in many fields of modern engineering practices. If external vibrations coincided with natural frequency of the material,... Topics: Spherical Shell, Cylindrical Shell, Normalised Frequency Parameter, Natural Frequency
This paper proposes an economical method that can be used by industries/plants to make a right decision in replacing the inefficient induction motors with efficient ones. proposed method focuses on the field efficiency of motors without the needs for removing motors and measuring the output power. The use of a few sets of measured data from field test coupled with the genetic algorithms using one operating point for evaluating motor equivalent circuit parameters instead of using the no load and... Topics: energy audit, field test, parameter estimation, induction motor
From the bitsavers.org collection, a scanned-in computer-related document.mitre :: ESD Technical Reports :: ESD-TR-67-2 A Methodology for Comparison of Generalized Data Management Systems PEGS Mar67 Topics: parameter, data, capability, system, rating, file, gdms, score, capabilities, parameters, parameter...
An analytical method of parameter estimation for thesynchronous generator based on dynamic behaviorevaluation is proposed in this paper. For this purpose, basedon the concept of performance deviation of generator withrespect to change of parameters, this paper proposes adeviation index showing the effect of change in eachparameter on output variables of generator such as active,reactive and apparent powers, rotor angle, terminal voltageand armature current. In other words, the bigger value... Topics: Synchronous Generator, Parameter Estimation, Dynamic Performance, Output Variables
A new kind of cubic trigonometric Hermite parametric curves and surfaces analogous to the normal cubic Hermite parametric curves and surfaces, with shape parameters, are presented in this work. The new curves and surfaces not only inherit properties of the normal cubic Hermite curves and surfaces in polynomial space respectively, but also enjoy some other advantageous properties for modeling. For given boundary conditions, the shapes of the new curves and surfaces can be adjusted by using the... Topics: Trigonometric Polynomial, Hermite Curve, Hermite Surface, Shape Parameter
byArmand, Sasan C.; Liao, Mei-Hwa; Morris, Ronald W
The Space Station Freedom photovoltaic solar array blanket assembly is comprised of several layers of materials having dissimilar elastic, thermal, and mechanical properties. The operating temperature of the solar array, which ranges from -75 to 60 C, along with the material incompatibility of the blanket assembly components combine to cause an elastic-plastic stress in the weld points of the assembly. The weld points are secondary structures in nature, merely serving as electrical junctions... Topics: CONSISTENCY, DISTRIBUTED PARAMETER SYSTEMS, SIMULATION, SYNCHRONISM, ALGORITHMS, ESTIMATES,...
byWoodward, Robert H.; Barnes, Robert A.; Mcclain, Charles R.; Esaias, Wayne E.; Barnes, William L.; Mecherikunnel, Ann T
Post-launch stability monitoring of the Sea-viewing Wide Field-of-view Sensor (SeaWifs) will include periodic sweeps of both an onboard solar diffuser plate and the moon. The diffuser views will provide short-term checks and the lunar views will monitor long-term trends in the instrument's radiometric stability. Models of the expected sensor response to these observations were created on the SeaWiFS computer at the National Aeronautics and Space Administration's (NASA) Goddard Space Flight... Topics: COMPUTERIZED SIMULATION, FLIGHT SIMULATION, HELICOPTERS, MATHEMATICAL MODELS, PARAMETER...
Power law distribution appears in several scientificfields such as physics, earth science, economics, social science andmany others. This paper illustrates new practical criteria forinferential statistics involving power law and, namely forestimation of power law distribution exponent and its confidenceinterval. To calculate this latter interval new expressions, inclosed form, are derived. This methodology has been comparedwith classical least squares method and that of maximumlikelihood,... Topics: Power Law, Poisson Distribution, Parameter Estimation, Confidence Interval, Scaling Analysis
byLu, Liang-Hung; Bhattacharya, Pallab; Katehi, Linda P. B.; Ponchak, George E
A micromachined structure with reduced parasitics is proposed to enhance the resonant frequency and the quality factor (Q) of a spiral inductor. Inductors with various etch depths have been fabricated on a high resistivity Si substrate. Two-port S-parameters measurement is taken to characterize the performance of the inductors. With an etch depth of 20 micron, a fabricated 1.8 nH spiral inductor achieves a maximum resonant frequency of 25.6 GHz and a maximum Q of 20.2 at 14.5 GHz. This... Topics: COMPLEX SYSTEMS, PARAMETER IDENTIFICATION, MATHEMATICAL MODELS, SYSTEM IDENTIFICATION, SCATTERING,...
In general, yaw control of aircraft plays a major role. It is controlled by rudder deflection by creating side force with help of rudder pedals. The aircraft yaw is controlled by several methods such as Fuzzy logic, linear quadraticcontroller (LQR), optimal pole placement method. These methodologies achieved only the transient response, but failed to obtain the steady state response. There are some cases, where the steady state response is necessary. In this research paper, we propose a new... Topics: Aircraft, Flight Control, Two Parameter, Yaw, Rudder, Disturbance Suppression
bySudipta Kumar Sarkar, Purna Chandra Barman & Malay Kumar Das
We report the measurements of birefringence as a function of temperature of a homologous series of alkyl cyanobiphenyls (nCB) liquid crystalline compounds by means of high resolution optical transmission method. The temperature dependence of the birefringence (Dn) were determined from the transmitted intensity data for wavelength l= 532nm. From the birefringence data, orientational order parameters (2>) were determined using three parameter Haller’s extrapolation technique.... Topics: Critical Exponent, Cyanobiphenyls, Optical Birefringence, Orientational Order Parameter
From the bitsavers.org collection, a scanned-in computer-related document.ibm :: 360 :: os :: tso :: GC28-6764-1 TSO Guide to Writing a Terminal Monitor Program or a Command Processor Rel 21 Mar72 Topics: macro, command, parameter, terminal, instruction, data, routine, input, figure, control, macro...
The genetic regulatory network, which is constructed fromthe time‐courses data sets, is always described as highlynonlinear differential equations. Mathematical andcomputational modeling technologies focus on efficientlyidentifying the parameters of the nonlinear dynamicbiological system. Various derivative‐free and derivativebasedoptimization technologies have been proposedrecently to infer the parameters of the S‐type geneticregulatory networks (S‐systems). The S‐system is... Topics: Parameter Estimation, S‐System, Memetic Computation, Genetic Algorithm
In this paper, a novel dual estimation methodology is developed for both time-varying parameters and states of a nonlinear stochastic system based on the Recursive Prediction Error (RPE) concept and Particle Filtering (PF) scheme. Our developed methodology in based on a parallel implementation of stateand parameter estimation filters as opposed to using a single filter for estimating the augmented states and parameters. The convergence and stability of our proposed dual estimation strategy are... Topics: Particle filter, parameter estimation, fault diagnosis, dual estimation